package cn.tedu;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class Demo03 {
    public static void main(String[] args) throws SQLException {
        //数据库连接对象   异常抛出
        Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/empdb?characterEncoding=utf8&serverTimezone=Asia/Shanghai",
                "root","root");
        //创建执行SQL语句对象
        Statement s = conn.createStatement();
        //执行插入SQL语句
//        s.executeUpdate("insert into emp(name) values ('Tom')");
        //执行修改SQL语句
//        s.executeUpdate("update emp set name='jerry' where name='Tom'");
        //执行删除SQL语句
        s.executeUpdate("delete from emp where name='jerry'");
        System.out.println("执行完成!");
        //关闭资源
        conn.close();


    }
}
